#define _CRT_SECURE_NO_WARNINGS 1

#include<unordered_map>
#include<unordered_set>
#include<iostream>

using namespace std;
void test_unorder_set1()
{
	unordered_set<int> s = { 3,1,6,7,8,2 };
	unordered_set<int>::iterator it = s.begin();
	while (it != s.end())
	{
		cout << *it << " ";
		++it;
	}
	cout << endl;
}

int main()
{
	test_unorder_set1();

	return 0;
}

